<iframe id="managerFrame" src="../info/taskManager.html" style="border: 0px solid transparent;">

</iframe>
<script>
    var managerInIframe = true;
    resizeIframe();
    $(window).on("resize", function(){
        resizeIframe();
    })
    function resizeIframe(){
        $("#managerFrame").css({
            "width": window.innerWidth - 14 * 2 + "px",
            "height": window.innerHeight - 100
        });
    }
  
</script>